Overdose is the third extended play by South Korean-Chinese boy bands Exo-K and Exo-M.

This is the final release to include members Kris and Luhan before they left the group and filed lawsuits against SM Entertainment requesting contract termination.

[2] On 15 May 2014, Exo-M's leader Kris filed a lawsuit against SM Entertainment to terminate his contract citing his neglected health and the company's violation of human rights.

[4][5] Prior to EP release, Exo kickstarted their promotions with a showcase at the Jamsil Arena in Seoul on 15 April 2014.

[6] From 1 to 9 April, a contest sponsored by Samsung enabled fans to enter and win tickets to attend the showcase.